Being far to impatient I'd rather use quick format and run the full self test with SMART afterwards (while being able to use the HDD at reduced performance).
@KleinesSinchen worse. PC reporting I have a fantom D: on it with nothing attached to make it a D: drive [before what I'm doing now. This came after cloning to my new SSD from HDD. Weird. And I can't delete it.
Dont! "Phantom D" might be an invisible partition that Windows 10 takes from C in order to recover your system in case it gets badly corrupted or when reinstalling OS
Alternatively, you can use Disk Management in "Administrative Tools for Windows" (translating from spanish as the options appears for me) and open the program. It should show your "ghost partition" and you can choose to either reintegrate it or delete it altogether.
Not recommended until you know what's in that partition.
Well... that's my experience.
Of course it might seem odd, but I might be actually incorrect.
Why not make a thread and ask for other's opinion on this situation?
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Are you using format.exe from Windows 98 forcing a surface scan on formatting a new partition!?
It shouldn't take more than a few seconds.